Time and alarm clock movement



(No Model.)

F. A. LANE.

TIME AND ALARM CLOCK MOVEMENT. No. 268,911. Patented Dec. 12, 1882..

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UNITED STATES PATENT OFFICE.

TIME AND ALARM CLOCK MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 268,911, dated December12, 1882.

Application filed July 17, 1882.

To all whom it may concern:

Be it known that I, FRED. A.LANE, of New Haven, in the county of NewHaven and State of Connecticut, have invented a new Improvement inClock-Movements; and Ido hereby declare the following, when taken inconnection with the accompanying drawings and the letters of referencemarked thereon, to be afull, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in

Figure 1, a front view; Fig. 2, a side view, enlarged; Fig. 3, anopposite side view, enlarged; Fig. 4, a top view, enlarged, portions ofthese views broken away to show sections.

This invention relates to an improvementin clock-movements, with specialreference to the movement, for which LettersPatentNo. 237,028 weregranted to me, dated January 25, 1881. In that patent the movement wasadapted to a pendulum-escapement. The object of my present invention isto adaptsubstantially that movement to a marine escapement, also tocombine therewith an alarm; and the invention consists in a frameconsisting of a front plate, an intermediate plate, and a rear plate,the actuating mechanism arranged between the rearand intermediate platescommunicating its power to the train arranged between the front andintermediate plates, said train communicating with the escapement-whecl,the lever and balance acting in connection therewith also arrangedbetween the front and intermediate plates, combined with analarm-movement arranged between the rear and intermediate plates onbearings independent of the hearings or shafts of the time-movement, asmore fully hereinafter described.

As in my previous patent, I employ three plates to form the frame of themovement. A is the rear plate, B the front plate, andC the intermediateplate; but unlike my previous patent, in which the rear and intermediateplates extended down below the front plate-that is, to abouttwice thelength of the front plate,with the actuating mechanism arrangedin thelower part of the space between the rear and intermediate plates-I makethe plates ofequal size, the three plates connected together by pillarsD at the corners.

E is the main wheel, arranged loose upon the (No model.)

shaft a, the said shaft taking its bearing in the rear and intermediateplates and extending through the rear plate to receive the windingkey F.The mainspring is attached by one end to the frame, and the other to theshaft to. ()n the shaft to is a ratchet, I), and on the main wheel E aspring-pawl, d, engaging the teeth of the said ratchet, so that byturning the key F the spring will be wound in the usual manner ofwinding clocks.

G is the center-shaft, which extends through the three plates from frontto rear, made angular on its rear end, as at c, to receive a key forsetting the pointers, the opposite or front end fitted to receive thepointers in the usual manner. The main wheel E works into a pinion, H,on the center shaft, Gr, between the rear and iiitermediate plates, andthrough which power is communicated to the train, the train beingarranged between the front and intermediate plates to communicate thepower to the'esc'apement-wheel I, into which the lever K plays,vibratory movement of the lever being imparted by the balance-wheel L,the balancewheel escapement, and the wheels of the train taking theirbearing in the front and intermediate plates. By this construction Iadapt the movement to a marine escapement and contract the movement intoa very small compass.

To apply to this movement an alarm without adding to the space occupiedby the movement I arrange a shaft,f, through from the frontto the rearplate, and at the front attach a gear, 9, of equal size, and so as towork into the gear 71., which receives its movement from the pinion onthe center-shaft and from the pinion z', from which the hour-hand wheelis driven, the minute-hand being fixed directly to the center-shaft,which makes one revolution each hour. The pinion l on the shaft F worksinto a gear, 122, arranged loose upon a shaft, a, between the rear andintermediate plates, the proportion of the pinion Z to the wheel m beingsuch that the wheel on will revolve with the hour-pointer-thatis, onerevolution each twelve hours.

On the hub of the wheel at is a cam, 0, and on the shaft n is a radialstud, 2, which stands against the cam-shaped end of the hub. The

shaft 11. is provided with any suitable frictional device (hererepresented as a spring, 1*,) which IOC 2 scam:

will create friction between the shaft and the frame, so that while theshaft may be turned to any desired position when in that position thefriction will hold the shaft, so that the wheel on may revolve thereonwithout imparting rotation to the shaft. This shaltn is thesetting-shaft. It is turned to change the position of the stud p andbring it into the position that the shoulder of the cam may escape fromthe stud at the time at which it is desired the alarm should be sounded.A springlever, s, bears upon the rear of the wheel, tending to force ittoward the stud, and so that as the wheel m revolves the face ofthe camwill work against the stud, graduall throwing the Wheel m rearward untilit arrives at the shoulder. Then the spring-lever will forcethe wheel mforward, which permits a corresponding movement of the end of the lever.The pinion l is of sufficient length to permit this axial movement ofthe wheel m.

Between the rear and -intern'iediate plates on a shaft, M, the mainwheel N of the alarm is arranged with a spring, R, in connection withthe frame and the shaft, the shaft extending to the rear, as at T, sothat thespring may be Wound, the usual pawl and ratchet being providedto connect the main wheel with the shaft. The main wheel works into apinion, t. on a shaft, u. The said shalt also takes its bearing in therear and intermediate plates and carries the escapement-wheel 10, whichworks into the verge mof the alarm-hammer, in the usual manner ofworking alarm-escapements. The hammer-shaft also takes its bearings inthe rear and intermediate plates. The lever 8 extends toward thehammer-shaft and carries a stud, 2, which, when the wheel at is thrownback, takes the stud 2 beneath an arm, 3, on the hammer-shaft, whichholds the hammer and prevents the verge escapingfrom the wheel to; butso soon as the wheel at escapesfrom the stud 11, so as to be thrownforward, as before described, the levers moves forward to take the stud2 from engagement with the arm 3 of the hammer, leaving the hammer freefor vi bration until the alarm-spring has run down. Then, as the timepart continues its movement it graduallyturus the wheelm until it isforced back by the action of the cam on its hub against the stud p,which movement will again bring the spiing-lever s into engagement withthe hammer. Then the alarm may be rewound and sounded, as before,unlessit be desired to change the time of the alarm. If this be the case theshaft a will be turned, as before described, to bring the stud 1) intoposition cor responding to the time when it is desired the alarm shallbe sounded. By this construction the alarm-movement is brought betweenthe rear and intermediate plates above the main wheel of thetime-movement and into a space not otherwise occupied, hence addsnothing to the size of the movement, and this is done withoutemployinganyofthe shafts olthetimemovementas bearings for the alarmmovement,which has heretofore been necessary in order to bring the alarm-movementinto the space occupied by the time-movement.

From the foregoing it will be understood that I do not claim broadlyathree-plate clockmovement having the main wheel arranged between therear and intermediate plates to communicate the power of the spring tothe train between theintermediate and trout plates; but

\Vhat I do claim is-- In a clock-mm emcnt consisting of the rear plate,A, the front plate, B, the intermediate plate G, the actuating mechanismarranged between therear and intermediateplates, communicating with thetrain between the front and intern'iediatc plates, and an alarm-movementarranged between the rear and intermediate platcs on bearingsindependentofthe bearings or shafts of the time-movement, substantiallyas described.

FRED. A. LANE.

Wi tnesses J. H. SHUMWAY, Jos. C. JJARLE.

